Celebrities at the Tiffany & Co. Blue Book 2026: Hidden Garden Launch

Here is a look at the rest of the notable attendees, including ambassadors, who attended Tiffany & Co.’s Blue Book 2026: Hidden Garden launch at the Park Avenue Armory in New York City last night.

Crystal Clean

Rosie Huntington-Whiteley one of her go-to labels; The New Arrivals, and while this may feel like a familiar formula for her, it lands. The streamlined strapless silhouette is elevated by the embellished bustier neckline, which works in harmony with her Tiffany & Co. jewels. It’s minimal, but as always, never not forgettable.

Stylist: Emma Jade Morrison.

She Who Sparkles

Amanda Seyfried had the same idea, letting her blue-stone and diamond Tiffany & Co. necklace complement her Oscar de la Renta mini dress. The intricate embellishment and sheer finish bring a lighter, more playful edge than some of her more recent press tour outings.

Stylist: Elizabeth Stewart.

Understated Top, Statement Finish

Gabrielle Union wore a Salih Balta Fall 2026 strapless dress that leans on contrast. The clean, sculpted bodice keeps things refined, while the subtle shimmer through the skirt brings the gala glamour.

Stylist: Thomas Christos Kikis.

Dark Glamour Done Right

Naomi Watts’ Taller Marmo look proves that black doesn’t have to fade into the background. The feathered peplum and sequinned detailing give the dress texture and life, allowing it to stand out against the dark backdrop while her Tiffany & Co. turquoise necklace adds a sharp, refreshing contrast.

Stylist: Jeanann Williams.

Nope

I wanted more from Rosé. While her Khaite Fall 2026 dress was promising the bodice lacks the structure needed to support it, leaving the overall look feeling a bit limp for an event of this scale.

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